Lock-switch



W. R. COX.

LOCK SWITCH.

APPLICATION FILED IuLv I4. 1916.

Patented Dec. 28, 12H9.

WITNESS A TTORNE YS.

W. R. COX. LOCK SWITCH.

A I APPLICATION FILED IULY I4. |9l6.

ll. Patented Dec. 23,1919.

una..

1N VEN TOR. l

A TTORNE YS.

Wennen n. cox, or CLEVELAND, omo.

LOCK-SWTCH.

Specification of Letters Patent.

v Patentedec. 23, idle.

application med nnyjii, i916. semi no. 109,376.

` To all whom t may concern.'

it known that Il, WARREN Cox, a c1t1zen of the United States, residing at Cleveland, in fthe county of Cuyahoga and State of Ohio', have invented certain new and useful Improvements in Locl{-S\v1tcl1es,

' of which the following is a specification.

. made oinsulating `material.

My invention appertains more', particularly to lock switches used to prevent the theft of automobiles, and the present device'is an improvement in the locking means disclosed in my Letters Patent No.. 1,015,300, dated January 23, 1912, and in my Patent No. 1,253,470 of Jan. 115, 1918,

ln one type of lock-switch in general use, the practice is to provide a switchA body This' body is secured to a coil-box and covered by apro tecting plate at itsfront. A key' is required to operate the switch and the protecting'V plate cannot be removed without the use of the 'same key. But the'switch body in gem eral use' is breaka-bie, and thefts ofcars have occurred where the switch has been reached by demolishing the body. My improved device is-designed to protect the switch body by inclosing the same with an extension forming an integral part of the protecting plate, and the device is modified also in other particulars, all as herein shown and described and more particularly pointed out in the claims. i

In the accompanying drawings, Figure 1 is a front view of my improved lock-switch mounted upon the front of a coil box, and Fig. 2 is asimilar view showing,f the lock switch in section and the coil boX partly broken away to disclose the electrical units therein.

Fig'. 3 is asectional view of the associated parte on line 3&3, Fig. 2. Fig. 4 is a vertical section centrally through the coil bonrv and lock switch, showing a key in place therein. Fig. 5 is a side viewvef the lock and a sectional view of the protecting shell affixedthereto. l

Certain types of automobiles employ metal coil boxes 2 within which a series of electrical sparking units 3 are housed. This box is usually secured to the dash-board or within the cowl of the vehicle and is provided at its front .vith an electrical switch,`

comprising a chanibered body of insulating material carrying spring contacts and a rotatable switch arm 7 to control two elec-` trical circuits, termed the magneto and bat- '.engaged by the turning movements of' the switch,-but the plungers must be in alinethrough tery circuits, respectively. Arm 7 is inounted on a metal sleeve 8 havingl rotatable hearing on a fixed stud or shaft 9, and the front end ot' said sleeve is provided with a slot or slots 10 dialnetrically thereof, see Fig: 2

whereby the arm may be turned either to the right or left when the right-angled pro jections 11 of the rotatable barrel l2 of the lock are operatively engaged with said slots in the sleeve 8 as shown, in Fig. 4. The projections 11' are flat and separated tostraddle stud 9, being in eect a divided fiat T-shaped extension of the barrel 12 which is rotatably mounted in the cylindrical housing 13 containingl the spring-pressed locking,r pins 14:. The barrel also contains a corre spondingr set of plungers 15 adapted to be key 16.in unlocking` and locking pins and ment as shown in Fig. 4: to e'ect locking voff the barrel and withdrawal of the key. In this position of the parts, the intent also is 4to use the projections 11 toe'ieot locking of the protecting shell 17.11pon switch body 5, a result obtained in use of a' plate ondisk 18, secured to the re cessed front of switch body 5 by screws 19, see Fig. 2. Disk 18 has a central opening; with edge slots 20 aiording an entrance for the"projection's 11 and permitting locking" engagement of the projections with the inner face of the disk. rlhe mounting' or housing,l

see dotted lines Fig. 3, and thereiforel when vthe barrel 1.2 is rotated by use of key 16 to `place the projecions' in line with the edge slots 20 it is poss'ble to remove the shell and lock jointly orn the switchv body 5, pro viding the extra fastening screws 22 4which extend through the front face into the body are also removed.

Shell 17' comprises a face plate having' a round reduced extension 23 at'its front to confine the lock and an enlarged irregularshaped extension' 23 at its rear to inclose the switch body 5, and the inner locking; disk 18 which is covered by the shell is cut away or extends only a short distance above the axial center o the switch body 5 to pro vide an opening 24:y whereby access to the chambered interior of the body 'may be gainedgto engage and remove the centrally positioned .locking screw 25 which extends the coil hoX 2 and serves to lock the units 3 therein. To explain `further, the

this structure by the'A or" the shell units 3 have channeled faces adapted to hold aset of locking bars 26 and the long lock` .ing screw :'25, and when the shell is locked .ilpon the switch body 5 the units cannot be taken our of box 2 nor can the switch be operated without the proper key. The metal inclosed body 5 makes it diieult to break the body into pieces by a hammer or other in; etrument and operation of theswitch or tampering; with the wire connections for the coil box is effectively pravented.

what I claim is: c

l. A body having a rotatable arm provided with a slotted bearing sleeve, a locking' plate secured at the front of said body having a central opening.;r adapted to coincide with the slots in said sleeve, and a metal shell inclosing the front and sides of said body having lockingmeehanism mountedthereon provided with interlocking exten- @D sions for both said. plate and sleeve.

Q. In a-lock switcl, Aa chambered body of insulating material having switch mechanism therein, aI radially slotted locking plaie secured to said body and open to the interior of the body above its axiale/enter, a fastening screw within said body, a metal protecting shell completely inclosing the front and sides of said body having key locking means mounted thereon and I extending 30 through said plate in interlocking relations therewith and with said switch mechanism.

In testimony whereof I affix my signature in presence of a witness.

Witness:

R. B. Moena. 

